Double-cavity air cylinder

Abstract

The double-cavity air cylinder comprises a first air storage cavity and a second air storage cavity which are integrally formed, the end of the first air storage cavity and the end of the second air storage cavity are each provided with an air outlet, and a sealing cover is arranged in each air outlet in a sealed mode; the first air storage cavity and the second air storage cavity which are integrally formed are adopted, polyethylene materials are preferably adopted, the material cost of the air storage cylinder is reduced, the occupied space of a vehicle is relatively small due to the overall installation mode, and the installation procedure is simplified due to single-time installation; in addition, the sealing cover body is arranged to be matched with the mounting opening, so that the sealing performance of the two air storage cavities can be further guaranteed; preferably, the sealing cover body comprises a sealing layer, and the sealing layer wraps the sealing cover body, so that the problems that the sealing cover body is corroded, chippings fall into the cylinder body to block the air pipe and the like can be avoided.

Description

Technical Field

[0001] This application relates to the field of automotive braking technology, specifically to a dual-chamber air reservoir. Background Technology

[0002] The air reservoir is an indispensable and important component of a car's braking system. Primarily used to store compressed air, it plays a crucial role in the car's air-pressure braking system and other systems that rely on compressed air. In actual use, cars typically have two air reservoirs. In a car's air-pressure braking system, the two reservoirs usually have different functional focuses. One reservoir is mainly responsible for providing compressed air for the vehicle's service brakes. For example, during normal driving, when the driver depresses the brake pedal to slow down or stop, the compressed air in this reservoir drives the brake chamber through relevant control components to achieve service braking. The other reservoir may primarily provide air for the vehicle's parking brake (handbrake). When the handbrake is engaged, the compressed air in the corresponding reservoir acts on the parking brake chamber to keep the vehicle stationary. This functional differentiation ensures that even if one air reservoir and its related pipelines fail, the other reservoir can still maintain some braking function to a certain extent, ensuring the basic reliability of the vehicle's braking system and avoiding the dangerous situation of complete brake failure due to the failure of a single air reservoir.

[0003] Existing technologies typically involve setting up two cylinders, which are installed in corresponding positions on the vehicle. This is costly, and the two cylinders need to be installed separately, occupying a relatively large space and increasing the installation process. The applicant searched using keywords such as "two chambers," "air tank," and "dual chambers" but did not find any relevant technical solutions.

[0004] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] This application provides a dual-cavity air storage cylinder, including an integrally formed air storage cavity one and an air storage cavity two, with air outlets respectively opened at the ends of the air storage cavity one and the air storage cavity two, and a sealing cover is sealed inside the air outlet.

[0006] As a preferred embodiment, a sealing plate is provided at the lower part of the air outlet, and the sealing plate is sealed to the inner wall of the first air storage chamber and the second air storage chamber. An air outlet is provided on the sealing plate that communicates with the air outlet.

[0007] As a preferred embodiment, a reinforcing rib is provided between the first gas storage chamber and the second gas storage chamber.

[0008] As a preferred embodiment, the reinforcing rib is a cross-shaped reinforcing rib.

[0009] As a preferred embodiment, the gas storage chamber one and the gas storage chamber two are made of polyethylene.

[0010] As a preferred embodiment, the sealing cover includes a cylindrical mounting portion, an upper part of which is provided with a component mounting portion, and an upper part of the component mounting portion is provided with a pipe head connection portion having a pipe head connection hole, or the component mounting portion having a pipe head connection hole, the pipe head connection hole communicating with a gas passage hole provided in the cylindrical mounting portion; the outer side of the cylindrical mounting portion and the outer side of the component mounting portion are covered with a sealing layer, or the outer side of the cylindrical mounting portion, the outer side of the component mounting portion, and the outer side of the pipe head connection portion are covered with a sealing layer; the sealing layer cooperates with the gas outlet.

[0011] As a preferred embodiment, the cylindrical mounting portion includes a bottom surface and a top surface, the diameter of the top surface being smaller than the diameter of the bottom surface, and the bottom surface and the top surface being inclined.

[0012] As a preferred embodiment, the slope of the sealing layer is the same as the slope of the cylinder mounting part, and the air outlet is provided with an air outlet slope that cooperates with the sealing layer.

[0013] As a preferred embodiment, the sealing layer includes an inclined sealing mounting portion, on which a sealing covering portion is provided, and the inclination of the sealing mounting portion is the same as the inclination of the cylinder mounting portion; the air outlet is provided with an air outlet inclined surface that mates with the sealing mounting portion.

[0014] As a preferred embodiment, a transition arc is provided between the sealing mounting part and the sealing covering part.

[0015] As a preferred embodiment, the outer side of the cylinder mounting portion, the outer side of some component mounting portions, or the outer side of all component mounting portions is covered with a sealing layer.

[0016] As a preferred embodiment, the outer side of the cylinder mounting portion, the outer side of the component mounting portion, the outer side of part of the pipe head connection portion, or the outer side of all the pipe head connection portions is covered with a sealing layer.

[0017] As a preferred embodiment, the sealing layer is made of PE.

[0018] As a preferred embodiment, the inclined surface is provided with raised strips or grooves at intervals.

[0019] As a preferred embodiment, the inclined surface is provided with multiple through holes.

[0020] As a preferred embodiment, the inclined surface and the raised strip or the inclined surface and the groove are provided with a plurality of through holes.

[0021] As a preferred embodiment, the pipe head connection hole is provided with an internal thread.

[0022] As a preferred embodiment, the lower part of the cylinder mounting section and the component mounting section is provided with a weight reduction groove.

[0023] This application adopts an integrally molded air storage chamber one and air storage chamber two, preferably made of polyethylene material, which reduces the material cost of the air storage cylinder. The overall installation method occupies relatively little space in the vehicle, and the single installation simplifies the installation process. In addition, the setting of the sealing cover and the matching of the installation port can further ensure the sealing of the two air storage chambers. Preferably, the sealing cover includes a sealing layer. The covering of the sealing layer can prevent corrosion of the sealing cover and the problem of debris falling into the cylinder and blocking the air pipe. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this application;

[0025] Figure 2 This is an internal schematic diagram of Part A of this application;

[0026] Figure 3 Top view of the sealing cover at the connection between the two pipe ends;

[0027] Figure 4 yes Figure 3 A sectional view;

[0028] Figure 5 This is a schematic diagram of the angle of the sealing cap of the two pipe head connection parts in this application;

[0029] Figure 6 This is a schematic diagram of angle two of the sealing caps at the two pipe head connections of this application;

[0030] Figure 7 This is a schematic diagram of the angle of one of the partial sealing caps of the two pipe head connections in this application;

[0031] Figure 8 This is a schematic diagram of angle two of the sealing caps at the two pipe head connections of this application;

[0032] Figure 9 This is a schematic diagram of angle three of the partial sealing cap of the two pipe head connection parts of this application;

[0033] Figure 10 This is a top view of the sealing cap of the three pipe head connections in this application;

[0034] Figure 11 yes Figure 10 A sectional view;

[0035] Figure 12 This is a schematic diagram of the angle of the sealing cap of the three pipe head connections in this application;

[0036] Figure 13 This is a schematic diagram of angle two of the sealing caps of the three pipe head connections in this application;

[0037] Figure 14 This is a schematic diagram of the angle of one of the partial sealing caps of the three pipe head connections in this application;

[0038] Figure 15 This is a schematic diagram of angle two of the partial sealing caps of the three pipe head connections in this application;

[0039] Figure 16 This is a schematic diagram of angle three of the partial sealing caps of the three pipe head connections in this application;

[0040] Figure 17 This is a schematic diagram of the angle of a partial sealing cap of a pipe head connection in this application;

[0041] Figure 18 This is a schematic diagram of angle two of a partial sealing cover of a pipe head connection in this application;

[0042] Figure 19 This is a top view of a sealing cover for a pipe head connection in this application;

[0043] Figure 20 This is a side view of a sealing cap of a pipe head connection in this application;

[0044] Figure 21 This is a schematic diagram of the angle of a sealing cap of a pipe head connection in this application;

[0045] 1. Gas storage chamber one; 2. Gas storage chamber two; 3. Gas outlet; 4. Sealing cover; 5. Gas outlet one; 6. Sealing plate; 7. Reinforcing rib; 8. Cylinder mounting part; 9. Component mounting part; 10. Pipe head connection hole; 11. Internal thread; 12. Gas through hole; 13. Sealing layer; 14. Bottom surface; 15. Top surface; 16. Inclined surface; 17. Groove; 18. Through hole; 19. Gas outlet inclined surface; 20. Weight reduction groove; 21. Pipe head connection part; 22. Protruding strip; 23. Sealing mounting part; 24. Sealing covering part; 25. Transition arc. Detailed Implementation

[0046] The following is combined with Figure 1 To be continued Figure 21 The specific embodiments of this utility model will be described in detail below. It should be noted that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0047] Example 1:

[0048] like Figure 1 , Figure 2As shown, this embodiment provides a dual-cavity gas storage cylinder, including an integrally formed gas storage cavity 1 and a gas storage cavity 2. The sizes of the gas storage cavity 1 and the gas storage cavity 2 can be the same or different, depending on the specific situation. In this embodiment, the capacities of the gas storage cavity 1 and the gas storage cavity 2 are 15L and 30L, respectively. The gas storage cavity 1 and the gas storage cavity 2 are preferably integrally formed by injection molding, and the material is preferably polyethylene. Gas outlets 3 are respectively opened at both ends of the gas storage cavity 1 and the gas storage cavity 2, and a sealing cover 4 is sealed inside the gas outlet 3. Preferably, a sealing plate 6 is provided at the bottom of the gas outlet 3, and a gas outlet 5 communicating with the gas outlet 3 is opened on the sealing plate 6. The sealing plate 6 is sealed and connected to the gas storage cavity 1 and the gas storage cavity 2. A reinforcing rib 7 is provided between the gas storage cavity 1 and the gas storage cavity 2. In order to improve the strength, the reinforcing rib 7 is integrally formed with the gas storage cavity 1 and the gas storage cavity 2. Preferably, the reinforcing rib 7 is a cross reinforcing rib.

[0049] This embodiment uses a one-piece molded dual-chamber air tank made of polyethylene, which reduces the material cost of the air tank. The overall installation method occupies relatively little space in the vehicle, and the single installation simplifies the installation process. The sealing cover 4 can ensure the airtightness of the dual-chamber air tank, prevent air leakage, and thus improve the safety of vehicle operation.

[0050] Example 2:

[0051] like Figures 17-21 As shown, this embodiment provides a structure for a sealing cover 4. The sealing cover 4 includes a cylindrical mounting part 8, and a component mounting part 9 is provided on the upper part of the cylindrical mounting part 8. The cylindrical mounting part 8 and the component mounting part 9 are integrally formed and machined from materials such as carbon steel and aluminum alloy. A pipe head connection hole 10 is provided on the upper part of the component mounting part 9. The pipe head connection hole 10 is used to connect gas pipes, etc. Preferably, an internal thread 11 is provided in the pipe head connection hole 10. The gas pipe connector is connected to the pipe head connection hole 10 by the thread, which facilitates connection and ensures connection stability. The pipe head connection hole 10 communicates with the gas through hole 12 provided in the cylindrical mounting part 8. A sealing layer 13 is covered on the outer side of the cylindrical mounting part 8, part of the component mounting part 9, or all of the component mounting parts 9. The sealing layer 13 is made of PE and is injection molded onto the outer side of the cylindrical mounting part 8, part of the component mounting part 9, or all of the component mounting parts 9. This embodiment, for example... Figure 21 As shown in the schematic diagram, the outer side of the cylindrical mounting portion 8 and the outer side of the partial component mounting portion 9 are covered. The partial component mounting portion 9 is preferably covered to the part mounting portion 9 at a position one-half to two-thirds of the way up from the cylindrical mounting portion 8.

[0052] Preferably, to facilitate the installation of the sealing cover 4 with the first air storage chamber 1 and the second air storage chamber 2, and to improve installation efficiency, the cylindrical mounting part 8 includes a bottom surface 14 and a top surface 15. The diameter of the top surface 15 is smaller than the diameter of the bottom surface 14, and the bottom surface 14 and the top surface 15 are connected by an inclined surface 16, that is, the cylindrical mounting part 8 has a certain slope to facilitate the installation of the sealing cover 4. To enhance the connection strength between the sealing layer 13 and the cylindrical mounting part 8, a groove 1 is provided on the inclined surface 16. 7. More preferably, the inclined surface 16 and the groove 17 are provided with a plurality of through holes 18; the injection-molded sealing layer 13 flows into the groove 17 and the through holes 18, enhancing the connection strength between the cylinder mounting part 8 and the sealing layer 13, making the sealing layer 13 less likely to fall off; the inclination of the sealing layer 13 is the same as the inclination of the cylinder mounting part 8; the air outlet 3 is provided with an air outlet inclined surface 19 that cooperates with the sealing layer 13, which facilitates the installation of the sealing cover 4, improves the fit, and ensures the sealing performance.

[0053] Preferably, in order to reduce manufacturing costs, a weight-reducing groove 20 is provided at the lower part of the cylinder mounting part 8 and the component mounting part 9.

[0054] Example 3:

[0055] like Figures 3 to 16 As shown, this embodiment provides a sealing cover 4 with another structure, including a cylindrical mounting part 8. A component mounting part 9 is provided on the upper part of the cylindrical mounting part 8, and a pipe head connection part 21 with a pipe head connection hole 10 is provided on the upper part of the component mounting part 9. In this embodiment, two or three pipe head connection parts 21 are used as examples. The cylindrical mounting part 8, component mounting part 9, and pipe head connection part 21 are integrally formed and machined from materials such as carbon steel or aluminum alloy. The pipe head connection hole 10 is used to connect gas pipelines, etc. Preferably, an internal thread 11 is provided in the pipe head connection hole 10. The connector of the body pipe is threaded to the pipe head connection hole 10, which facilitates connection while ensuring connection stability; the pipe head connection hole 10 communicates with the gas passage hole 12 provided in the cylinder mounting part 8; the outer side of the cylinder mounting part 8, the outer side of the component mounting part 9, and the outer side of part or all of the pipe head connection parts 21 are covered with a sealing layer 13, which is made of PE layer and is injection molded onto the outer side of the cylinder mounting part 8, the outer side of the component mounting part 9, and the outer side of part or all of the pipe head connection parts 21. In this embodiment, for example... Figure 4 , Figure 11 As shown in the schematic diagram, it covers the outside of the cylinder mounting part 8, the outside of the component mounting part 9, and the outside of the partial pipe head connection part 21. The partial pipe head connection part 21 preferably covers the pipe head connection part 21 at one-half to two-thirds of the distance upward from the component mounting part 9.

[0056] Preferably, to facilitate the installation of the sealing cap 4 and the gas storage cylinder and improve installation efficiency, the cylinder mounting part 8 includes a bottom surface 14 and a top surface 15. The diameter of the top surface 15 is smaller than the diameter of the bottom surface 14, and the bottom surface 14 and the top surface 15 are inclined surfaces 16, that is, the cylinder mounting part 8 has a certain slope to facilitate the installation of the sealing cap 4. To enhance the connection strength between the sealing layer 13 and the cylinder mounting part 8, a raised strip 22 is provided on the inclined surface 16. More preferably, a plurality of through holes 18 are provided on the inclined surface 16 and the raised strip 22. The injection-molded PE flows into the raised strip 22 and the inclined surface 16. The grooves between the inclined surfaces 16 and the through holes 18 enhance the connection strength between the cylinder mounting part 8 and the sealing layer 13, making the sealing layer 13 less prone to falling off. In this embodiment, the sealing layer 13 includes an inclined sealing mounting part 23, on which a sealing covering part 24 is provided, and a transition arc 25 is provided between the sealing mounting part 23 and the sealing covering part 24. The inclination of the sealing mounting part 23 is the same as that of the cylinder mounting part 8. An outlet inclined surface 19 that cooperates with the sealing layer 13 is provided at the outlet 3, which facilitates the installation of the sealing cover 4, improves the fit, and ensures the sealing performance.

[0057] In summary, by adopting the above-mentioned technical solutions, this application uses one-piece molded air storage chamber one and air storage chamber two, preferably made of polyethylene material, which reduces the material cost of the air storage cylinder. The overall installation method occupies relatively little space in the vehicle, and the single installation simplifies the installation process. In addition, the setting of the sealing cover and the matching of the installation port can further ensure the sealing of the two air storage chambers. Preferably, the sealing cover includes a sealing layer, and the covering of the sealing layer can prevent corrosion of the sealing cover and the debris from falling into the cylinder and blocking the air pipe.

[0058] The devices and connections not specifically described above are all existing technologies, and will not be described in detail here.

[0059] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0060] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the various possible combinations in this application will not be described separately.

[0061] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, and such combinations should also be regarded as the content disclosed in this application.

Claims

1. A dual-chamber gas storage cylinder, comprising a first gas storage chamber (1) and a second gas storage chamber (2), characterized in that, The first gas storage chamber (1) and the second gas storage chamber (2) are integrally formed. The ends of the first gas storage chamber (1) and the second gas storage chamber (2) are respectively provided with gas outlets (3). A sealing cover (4) is sealed inside the gas outlet (3). The sealing cover (4) includes a cylindrical mounting part (8). A component mounting part (9) is provided on the upper part of the cylindrical mounting part (8). A pipe head connection part (21) with a pipe head connection hole (10) is provided on the upper part of the component mounting part (9). The component mounting part (9) is provided with a pipe head connection hole (10), which is connected to the gas through hole (12) provided in the cylinder mounting part (8); the outer side of the cylinder mounting part (8) and the outer side of the component mounting part (9) are covered with a sealing layer (13) or the outer side of the cylinder mounting part (8), the outer side of the component mounting part (9) and the outer side of the pipe head connection part (21) are covered with a sealing layer (13); the sealing layer (13) is matched with the gas outlet (3).

2. The dual-chamber gas storage cylinder according to claim 1, characterized in that, The bottom of the air outlet (3) is provided with a sealing plate (6), which is sealed to the inner wall of the first air storage chamber (1) and the second air storage chamber (2). The sealing plate (6) has an air outlet (5) that communicates with the air outlet (3).

3. A dual-chamber gas storage cylinder according to claim 1, characterized in that, A reinforcing rib (7) is provided between the first gas storage chamber (1) and the second gas storage chamber (2).

4. A dual-chamber gas storage cylinder according to claim 3, characterized in that, The reinforcing rib (7) is a cross-shaped reinforcing rib.

5. A dual-chamber gas storage cylinder according to claim 1, characterized in that, The gas storage chamber one (1) and gas storage chamber two (2) are made of polyethylene.

6. A dual-chamber gas storage cylinder according to claim 1, characterized in that, The cylindrical mounting part (8) includes a bottom surface (14) and a top surface (15). The diameter of the top surface (15) is smaller than the diameter of the bottom surface (14). The bottom surface (14) and the top surface (15) are inclined surfaces (16).

7. A dual-chamber gas storage cylinder according to claim 1, characterized in that, The slope of the sealing layer (13) is the same as the slope of the cylinder mounting part (8), and the air outlet (3) is provided with an air outlet slope (19) that cooperates with the sealing layer (13).

8. A dual-chamber gas storage cylinder according to claim 1, characterized in that, The sealing layer (13) includes an inclined sealing mounting part (23), on which a sealing covering part (24) is provided, and the inclination of the sealing mounting part (23) is the same as the inclination of the cylinder mounting part (8); an outlet inclined surface (19) matching the sealing mounting part (23) is provided at the outlet (3).

9. A dual-chamber gas storage cylinder according to claim 1, characterized in that, The sealing layer (13) is made of PE.

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